CN104130781B - A kind of liquid-crystal composition and application thereof - Google Patents
A kind of liquid-crystal composition and application thereof Download PDFInfo
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Abstract
The invention provides a kind of liquid-crystal composition, the component that said composition comprises following percentage by weight: the 1) compound of one or more general formula I representatives of 1%～50%; 2) compound of one or more general formula Is I to III representative of 1%～85%; 3) compound of one or more general formula Is V to XV representative of 0%～80%; 4) compound of one or more general formula X VI to XVIII representative of 0%～30%; 5) compound of one or more general formula X IX to XXIII representative of 0%～30%; 6) compound of one or more general formula X XIV to XXVII representative of 0%～15%. Liquid-crystal composition viscosity provided by the present invention is low, dielectric anisotropy, clearing point and optical anisotropy good combination property, can improve the response speed of liquid crystal display, its use in TN, ADS, FFS or IPS mode display can obviously improve liquid crystal display display effect, is particularly useful for fast response liquid crystal display unit.
Description
Technical field
The present invention relates to liquid crystal material field, be specifically related to a kind of brand-new liquid-crystal composition and in field of liquid crystal displayApplication.
Background technology
At present, liquid crystal is used widely in field of information display, and the application in optical communication simultaneously has also obtained necessarilyProgress (S.T.Wu, D.K.Yang.ReflectiveLiquidCrystalDisplays.Wiley, 2001). In recent years,The application of liquid-crystal compounds has significantly been widened kinds of displays part, electro-optical device, electronic component, sensor. ForThis, proposed many different structures, and particularly in nematic crystal field, nematic liquid crystal compound is so far flatIn panel display, obtain applying the most widely. In system especially for tft active matrix.
Liquid crystal display follows the discovery of liquid crystal to experience very long road for development. Austrian botanist in 1888FriedrichReinitzer has found the first liquid crystal material benzoic acid cholesterol (cholesterylbenzoate).Within 1917, Manguin has invented friction Directional Method, in order to make single domain liquid crystal and Optical anisotropy. E.Bose in 1909Set up and collected together (Swarm) theory, and obtained the people's such as L.S.Ormstein and F.Zernike experiment support (1918), afterBe discussed as statistical fluctuation through DeGennes. G.W.Oseen and H.Zocher1933 found continuum theory, and obtainF.C.Frank perfect (1958). M.Born (1916) and K.Lichtennecker (nineteen twenty-six) find and have studied liquid crystalDielectric anisotropy. 1932, W.Kast was divided into nematic phase the large class of positive and negative property two accordingly. Nineteen twenty-seven,V.Freedericksz and V.Zolinao find that nematic liquid crystal is under electric field (or magnetic field) effect, deformation occurs and have electricityPress threshold value (Freederichsz transformation). This making that is found to be liquid crystal display provides foundation.
The nineteen sixty-eight R.Williams of RCA Corp. of the U.S. finds that nematic liquid crystal forms striped farmland under electric field action, and hasLight scattering phenomenon. G.H.Heilmeir is with develop into dynamic scattering display mode by it, and makes first liquid crystal in the worldDisplay (LCD). Early seventies, Helfrich and Schadt have invented TN principle, and people utilize TN photoelectric effect and integratedCircuit combines, and is made display device (TN-LCD), for wide prospect has been opened up in the application of liquid crystal. The seventies withCome, due to the development of large scale integrated circuit and liquid crystal material, the application of liquid crystal aspect demonstration obtained breakthrough development,The people such as 1983～1985 years T.Scheffer successively propose supertwist nematic phase (SuperTwisredNematic:STN) patternAnd active matrix (Activematrix:AM) mode that P.Brody proposed in 1972 is adopted again. Traditional TN-LCD technology has developed into STN-LCD and TFT-LCD technology, although more than the number of scanning lines of STN can reach 768 row, work as temperatureWhen rising, still exist the problems such as response speed, visual angle and gray scale, therefore large area, high information quantity, colored demonstration mostlyAdopt Active Matrix LCD At mode. TFT-LCD has been widely used in direct viewing type TV, large-curtain projecting TV set, terminalShow and some military instrument demonstration, believe that TFT-LCD technology has more wide application prospect.
Wherein " active matrix " comprises two types: 1, the OMS on the silicon wafer as substrate (partly lead by metal oxideBody) or other diode. 2, the thin film transistor (TFT) on the glass plate as substrate (TFT).
Monocrystalline silicon has limited display size as substrate material because each several part display device even module assembled tie at itClose place and occur many problems. Thereby the second thin film transistor (TFT) is the promising active matrix type of tool, the photoelectricity utilizing effectNormally TN effect. TFT comprises compound semiconductor, as Cdse, or taking polycrystalline or amorphous silicon as basic TFT.
At present, for small size and display of size for dull and stereotyped and smart mobile phone display, face internal conversion(IPS) and fringing field switch (FFS) pattern be very interesting. IPS and FFS pattern are widely used in intelligence and middle chiThe reason of very little display is wide visual angle, with respect to the low operational factor of knowing pattern in prior art, with respect to IPS pattern, FFSHave higher transmissivity. Liquid crystal compound of the prior art is characterised in that it is by the compound with positive dielectric anisotropyAnd optional neutral compound forms.
In liquid crystal display, expect to have the medium that helps the following advantage in box: 1, wide nematic phase range (particularlyDownwards until low temperature); 2, the ability (outdoor application, automobile, avionics) of switching under utmost point low temperature; That 3, improves is rightThe tolerance (longer service life) of ultra-violet radiation; 4, low threshold voltage (saving electric energy); 5, high-transmission rate.
Summary of the invention
The object of the invention is to overcome in prior art the performance deficiency for the liquid-crystal composition of liquid crystal display, provideA kind of rotary viscosity is low, and the liquid-crystal composition of dielectric anisotropy, clearing point and rotary viscosity good combination property. This combinationThing can improve the performances such as driving voltage, response speed and the serviceability temperature scope of liquid crystal display.
The invention provides a kind of liquid-crystal composition, the component that said composition comprises following percentage by weight:
1) compound of one or more general formula I representatives of 1%～50%;
2) compound of one or more general formula Is I to III representative of 1%～85%;
3) compound of one or more general formula Is V to XV representative of 0%～80%;
4) compound of one or more general formula X VI to XVIII representative of 0%～30%;
5) compound of one or more general formula X IX to XXIII representative of 0%～30%;
6) compound of one or more general formula X XIV to XXVII representative of 0%～15%;
Wherein, above-mentioned 1) to 6) sum is 100%.
The structure of described general formula I is:
Wherein, A1Represent singly-bound or Isosorbide-5-Nitrae-cyclohexyl; A2And A4Be selected from independently of one another: singly-bound, Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-Phenyl, wherein one or more H atoms can be replaced by F atom; A3Represent singly-bound or Isosorbide-5-Nitrae-phenyl, wherein one or more H are formerSon can be replaced by F atom; X represents F, OCF3、OCHF2、CF3、CF2H、Cl、OCH＝CF2、O(CH2) nF or OCF2CF＝CF2；Y1And Y2Be selected from independently of one another H or F; N is 2～10.
The structure of described general formula I I～XXII is as follows:
Wherein, R2And R3Be selected from independently of one another: cyclopenta, C1～C7Alkyl or C1～C7Alkoxyl, wherein arbitraryOne or more CH in situation2Group can be independently of one another replaced by-CH=CH-, and one or more H atoms can be by FAtom replaces; A and B are selected from Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenyl independently of one another, and wherein the one or more H in arbitrary situation are formerSon can be replaced by F atom; C and D all represent Isosorbide-5-Nitrae-cyclohexyl, one of them-CH2-or two not direct-connected-CH2-canReplaced by O; X1Represent F, OCF3、OCHF2、CF3、CF2H、Cl、OCH＝CF2、O(CH2) nF or OCF2CF＝CF2；Y1～Y7SeparatelyIndependently selected from H or F; Z5Represent singly-bound ,-C2H4-、-(CH2)4-、-CH＝CH、-CF＝CF、-C2F4-、-CH2CF2-、-CF2CH2-、-CH2O-、-OCH2、-COO-、-CF2O-or-OCF2-。
In liquid-crystal composition provided by the present invention, the compound intersolubility of general formula I representative is good, and combination property is excellentDifferent, especially its dielectric anisotropy is high.
Preferably, in the compound of general formula I representative, A1Represent singly-bound or Isosorbide-5-Nitrae-cyclohexyl; A2Represent singly-bound, Isosorbide-5-Nitrae-ringHexyl or Isosorbide-5-Nitrae-phenyl, wherein one or more H atoms can be replaced by F atom; A3Represent singly-bound or Isosorbide-5-Nitrae-phenyl, one of themOr multiple H atoms can be replaced by F atom; A4Represent singly-bound; X represents F, OCF3、OCHF2、O(CH2) nF or CF3；Y1And Y2SeparatelyIndependently selected from H or F, and be H when different; N is 2～5.
Further preferably, in the compound of general formula I representative, A1Represent singly-bound or Isosorbide-5-Nitrae-cyclohexyl; A2Represent singly-bound,Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenyl, wherein one or more H atoms can be replaced by F atom; A3Represent singly-bound or Isosorbide-5-Nitrae-phenyl, itsIn one or more H atoms can be replaced by F atom; A4Represent singly-bound; X represents F, OCF3、OCHF2Or CF3；Y1And Y2Independent separatelyBe selected from H or F, and be H when different; N is 2～5.
More preferably, the compound of general formula I representative is selected from one or more in following compound:
Wherein, X represents F, OCF3、OCHF2Or CF3；Y1And Y2Be selected from independently of one another H or F, and be H when different; N is 2～5。
Most preferably, the compound of general formula I representative is selected from one or more in following compound:
Two ring structure compounds of II provided by the present invention or III class general formula representative are non-polar component. This type of changeCompound is remarkable for the viscosity, the effect of raising response speed that reduce system, is that the liquid crystal compound of response must fast in allotmentA few compounds.
Preferably, the compound of general formula I I and III representative is selected from one or more of following compound:
The compound of IV to XV class general formula representative provided by the present invention is polar compound, and this structure has largerDielectric anisotropy, applies in liquid-crystal composition and can reduce driving voltage, saves the energy.
Preferably, the compound of general formula I V to XV representative is selected from one or more in following compound:
Wherein, R2And X1Refer to the same, Y1～Y7Be selected from independently of one another H or F.
The compound of XVI to XVIII class general formula representative provided by the present invention is biphenyl or terphenyl structure, this structureThere is larger optical anisotropy, apply in liquid-crystal composition and can improve optical anisotropy, thereby it is thick to reduce box, carriesHigh response speed.
Preferably, the compound of general formula X VI to XVIII representative is selected from one or more in following compound:
Wherein, R2、R3、Y1、Y2And X1Refer to the same.
The compound of XIX to XXIII class general formula representative provided by the present invention is Fourth Ring structure, has high clearing point,Apply to the temperature applicable range that can improve device in liquid-crystal composition.
Preferably, the compound of general formula X IX to XXIII representative is selected from one or more of following compound:
Wherein, R2、R3And X1Refer to the same.
The compound of XXIV to XXVII class general formula representative provided by the present invention is negative liquid crystal monomer, its Vertical SquareTo dielectric coefficient large, apply to the penetration that can improve liquid crystal device in liquid-crystal composition.
Preferably, the compound of general formula X XIV to XXVII representative is selected from one or more in following compound:
Wherein, R2And R3Refer to the same.
Preferably, the component that liquid-crystal composition provided by the present invention comprises following percentage by weight:
1) compound of one or more general formula I representatives of 2%～30%;
2) compound of one or more general formula Is I to III representative of 17%～82%;
3) compound of one or more general formula Is V to XV representative of 0%～70%;
4) compound of one or more general formula X VI to XVIII representative of 0%～30%;
5) compound of one or more general formula X IX to XXIII representative of 0%～25%;
Wherein, above-mentioned 1) to 5) sum is 100%.
Further preferably, the component that liquid-crystal composition provided by the present invention comprises following percentage by weight:
1) compound of one or more general formula I representatives of 4%～30%;
2) compound of one or more general formula Is I to III representative of 20%～80%;
3) compound of one or more general formula Is V to XV representative of 5%～50%;
4) compound of one or more general formula X VI to XVIII representative of 1%～25%;
5) compound of one or more general formula X IX to XXIII representative of 1%～25%.
Wherein, above-mentioned 1) to 5) sum is 100%.
More preferably, the component that liquid-crystal composition provided by the present invention comprises following percentage by weight:
1) compound of one or more general formula I representatives of 5%～20%;
2) compound of one or more general formula Is I to III representative of 23%～60%;
3) compound of one or more general formula Is V to XV representative of 6%～50%;
4) compound of one or more general formula X VI to XVIII representative of 5%～25%;
5) compound of one or more general formula X IX to XXIII representative of 3%～20%.
Wherein, above-mentioned 1) to 5) sum is 100%.
The preparation method of liquid-crystal composition of the present invention, without particular restriction, can adopt conventional method that two or more are changedCompound mixes to be produced, as the method preparation by high temperature mixing different component and dissolve each other, wherein, by liquid crystal groupCompound is dissolved in for the solvent of this compound and mixes, and then under reduced pressure distills out this solvent; Or of the present inventionLiquid-crystal composition can be according to conventional method preparation, as the component that wherein content is less is dissolved in to content at higher temperatureIn larger key component, or component under each is dissolved in organic solvent, as acetone, chloroform or methyl alcohol etc., then by moltenLiquid obtains after mixing removal solvent, and the present invention is not particularly limited this.
The present invention further asks to protect the application of above-mentioned liquid-crystal composition in liquid crystal indicator, described liquid crystal displayDevice comprises TN, ADS, FFS or IPS display.
Liquid-crystal composition viscosity provided by the present invention is low, and dielectric anisotropy, clearing point and optical anisotropy are comprehensivePerformance is good, can improve the response speed of liquid crystal display. Therefore, liquid-crystal composition provided by the present invention is at TN, ADS, FFSOr use in IPS mode display can obviously improve liquid crystal display display effect, be particularly useful for fast response liquid crystal aobviousShowing device.
Detailed description of the invention
Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
In the embodiment of the present invention, the preparation of liquid-crystal composition is all adopted with the following method:
Evenly the preparation of liquid crystal adopts the heat of solution method generally using in the industry, first weighs by weight percentage with balanceLiquid-crystal compounds, wherein weighs addition sequence without particular requirement, conventionally with liquid-crystal compounds fusing point order from high to low successivelyWeigh and mix, at 60-100 DEG C, add thermal agitation each component is melted evenly, more after filtration, revolve steaming, finally encapsulate and obtain orderStandard specimen product.
Except as otherwise noted, in context, percentage is weight percentage; The unit of temperature is degree Celsius; △ n is opticsAnisotropy (20 DEG C); Δ ε is dielectric anisotropy (25 DEG C, 1000Hz); γ 1 is bulk viscosity (mPas, 25 DEG C); Cp isThe clearing point of liquid-crystal composition (DEG C).
For the ease of representing, in following examples, coded representation shown in table 1 for unit structure in liquid-crystal compounds:
Table 1: the unit structure code of liquid-crystal compounds
Taking following structure as example:
Be expressed as DPUQU-F3.F.
Be expressed as CCPU-5.F.
The liquid-crystal compounds that in following examples, proportioning is weight percentage is also prepared liquid crystal with method described in the present inventionComposition, the performance parameter of the liquid-crystal composition of concrete proportioning and gained is shown in following table.
Embodiment 1
Table 2: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has higher dielectric anisotropy, is applicable to the liquid crystal indicator of low voltage drive.
Embodiment 2
Table 3: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has higher dielectric anisotropy, is applicable to the liquid crystal indicator of low voltage drive.
Embodiment 3
Table 4: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has lower viscosity, is applicable to the liquid crystal indicator of fast-response low voltage drive.
Embodiment 4
Table 5: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has lower viscosity and higher optical anisotropy, is applicable to the liquid crystal display dress of response fastPut.
Embodiment 5
Table 6: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has high dielectric anisotropy, is applicable to the liquid crystal indicator of low voltage drive.
Embodiment 6
Table 7: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has higher optical anisotropy, is applicable to the liquid crystal indicator of response fast.
Embodiment 7
Table 8: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has lower rotary viscosity, is applicable to fast response liquid crystal display unit.
Embodiment 8
Table 9: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has high dielectric anisotropy, is applicable to the liquid crystal indicator of low voltage drive.
Embodiment 9
Table 10: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has low rotary viscosity, is applicable to the liquid crystal indicator of response fast.
Embodiment 10
Table 11: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has high dielectric anisotropy, is applicable to the liquid crystal indicator of low voltage drive.
Embodiment 11
Table 12: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has high clearing point, is applicable to the liquid crystal indicator of wide temperature.
Embodiment 12
Table 13: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has low rotary viscosity, is applicable to fast response liquid crystal display unit.
Embodiment 13
Table 14: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has high clearing point, is applicable to the liquid crystal indicator of wide temperature.
Embodiment 14
Table 15: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has low rotary viscosity, is applicable to the liquid crystal indicator of response fast.
Embodiment 15
Table 16: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has lower rotary viscosity and larger dielectric anisotropy, is applicable to low voltage drive and quickThe liquid crystal indicator of response.
Embodiment 16
Table 17: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has high clearing point, is applicable to the liquid crystal indicator of wide temperature.
Embodiment 17
Table 18: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has high clearing point, is applicable to the liquid crystal indicator of wide temperature.
Embodiment 18
Table 19: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has low rotary viscosity, is applicable to the liquid crystal indicator of response fast.
Embodiment 19
Table 20: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has lower rotary viscosity and larger dielectric anisotropy, is applicable to low voltage drive and quickThe liquid crystal indicator of response.
Embodiment 20
Table 21: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has high clearing point, is applicable to the liquid crystal indicator of wide temperature.
Embodiment 21
Table 22: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has relatively high dielectric anisotropy, because the penetration aspect that is added on of negativity monomer is improved outstandingIt is obvious.
Embodiment 22
Table 23: when performance parameter of the weight percent of each component in liquid-crystal composition
Said composition has relatively high clearing point, and the serviceability temperature scope of liquid crystal device is increased.
Comparative example 1
Table 24: do not add each component and performance parameter in the liquid-crystal composition of Compound I
Compared with comparative example 1, embodiment 8 only substitutes traditional CCU-3.F and CCU-with DUQU-F3.F and DUQU-F4.F4.F. Embodiment 8 is compared known with each performance parameter value of comparative example 1 gained liquid-crystal composition: compared with comparative example 1,Embodiment 8 adds after the compound of general formula I, and dielectric anisotropy △ ε is increased to 6.9 by 3.5, and other performances maintain not substantiallyBecome, thereby the driving voltage of display is reduced, response speed is accelerated.
Comparative example 2
Table 25: each component and performance parameter in the conventional liquid-crystal composition of liquid crystal display
Compared with the conventional liquid-crystal composition of the liquid crystal display that provides with comparative example 2, the combination that the embodiment of the present invention providesThing, maintains at dielectric anisotropy, clearing point and optical anisotropy on the basis of balance, and rotary viscosity γ 1 is starkly lower thanComparative example 2, can significantly improve the response speed of liquid crystal display device.
Except general formula I part of compounds, each liquid-crystal compounds that liquid-crystal composition of the present invention uses is knownMaterial, its structure and acquiring way thereof (as commercially available or synthetic) are those skilled in the art and grasp, herein because length is limit,The preparation process of only enumerating the non-known compound of part, other repeat no more.
Embodiment 23
2-{4'-[1-(3,4,5-trifluoromethoxy phenoxy base) twoMethyl fluoride]-3', 5'-difluoro biphenyl }-5-(3-fluoropropyl)-[synthesizing of 1,3] diox (compound 5)
1) 2-(4-bromophenyl)-5-(3-fluoropropyl)-[synthesizing of 1,3] diox (compound 3):
In 500mL there-necked flask, add 0.3L toluene, 31.5g p-bromobenzaldehyde (compound 2), 23.1g2-(3-fluorine thirdBase)-1,3-PD (compound 1), 1.2g p-methyl benzenesulfonic acid. Open agitating heating, back flow reaction 3 hours. Post processing, 0.2L ×2 washings, merged the organic 20g of being added to anhydrous sodium sulfate drying after 0.5h hour, were spin-dried for solvent, added 150mL toluene and 150mLBenzinum, crosses 30g silicagel column, 3 times of post Gao Chongzhu. Be spin-dried for solvent and obtain 67g, add 2 times of ethanol and 0.5 times of toluene, refrigerator freezing(30 DEG C) suction filtration that spends the night, product white solid, gas phase purity (GC) 99.0%; Theoretical yield: 51.3g, actual production:27.1g, yield 53%.
2) 2-{4'-[1-(3,4,5-trifluoromethoxy phenoxy base) difluoromethyl]-3', 5'-difluoro biphenyl }-5-(3-fluorine thirdBase)-[synthesizing of 1,3] diox (compound 5):
In 200mL there-necked flask, add 26mL absolute ethyl alcohol, 50mL toluene and 50mL water, start stirring, adds 19.5g4-[1-(3,4,5-trifluoromethoxy phenoxy base) difluoromethyl]-3,5-difluorobenzene boric acid (compound 4), 15.2g2-(4-bromophenyl)-5-(3-fluoropropyl)-[1,3] diox (compound 3) and 11.7g natrium carbonicum calcinatum. Empty substitution nitrogen three times, adds 0.25g tetra-(triphenylphosphine) closes palladium. While being heated to 60 DEG C of liquid phases, be slowly heated to reflux, back flow reaction 6 hours.
Reflux complete, in reactor, add 40mL water, stir 10 minutes, leave standstill separatory, 40mL for organic phase × 2 washingTwice. Add 3 times of benzinum heating for dissolving, column chromatography. Be spin-dried for 4 times of ethanol frozen recrystallizations of solvent three times, suction filtration dries whiteLook solid.
The theoretical yield of product is 26.6g, and actual production is 21.5g, and yield is 80.8%; Gas phase purity (GC) is99.9%; Fusing point is 80.0 DEG C; Clearing point is 109.1 DEG C; Δ n is 0.144; Δ ε is 33.46; γ 1 is 125mPas; Mass spectrumAnalytical fragments: 239,267,385,532 (molecular ion peaks); H-NMR nuclear magnetic spectrogram (CDCl3,300MHz): δ H:0.90-2.60(m,5H),3.50-5.90(m,7H),6.20-7.50(m,8H)。
Provide for simple replacement of according to the technical scheme of embodiment 23 raw material that contains corresponding group and can synthesize following compound:
Although, above use general explanation, detailed description of the invention and test, the present invention has been done to detailed retouchingState, but on basis of the present invention, can make some modifications or improvements it, this is apparent to those skilled in the art. Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the present invention claimedScope.
Claims (10)
1. a liquid-crystal composition, is characterized in that, the component that said composition comprises following percentage by weight:
1) compound of one or more general formula I representatives of 1%～50%;
2) compound of one or more general formula Is I to III representative of 1%～85%;
3) compound of one or more general formula Is V to XV representative of 0%～80%;
4) compound of one or more general formula X VI to XVIII representative of 5%～30%;
5) compound of one or more general formula X IX to XXIII representative of 0%～30%;
6) compound of one or more general formula X XIV to XXVII representative of 0%～15%;
Wherein, above-mentioned 1) to 6) sum is 100%;
Wherein,
A1Represent singly-bound or Isosorbide-5-Nitrae-cyclohexyl;
A2And A4Be selected from independently of one another: singly-bound, Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenyl, wherein one or more H atoms can be former by FSon replaces;
A3Represent singly-bound or Isosorbide-5-Nitrae-phenyl, wherein one or more H atoms can be replaced by F atom;
X represents F, OCF3、OCHF2、CF3、CF2H、Cl、OCH＝CF2、O(CH2) nF or OCF2CF＝CF2；
Y1And Y2Be selected from independently of one another H or F;
N is 2～10;
Wherein,
R2And R3Be selected from independently of one another: cyclopenta, C1～C7Alkyl or C1～C7Alkoxyl, wherein one in arbitrary situationIndividual or multiple CH2Group can be independently of one another replaced by-CH=CH-, and one or more H atoms can be replaced by F atom;
A and B are selected from Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenyl independently of one another, and wherein the one or more H atoms in arbitrary situation canTo be replaced by F atom;
C and D all represent Isosorbide-5-Nitrae-cyclohexyl, one of them-CH2-or two not direct-connected-CH2-can be replaced by O;
X1Represent F, OCF3、OCHF2、CF3、CF2H、Cl、OCH＝CF2, O (CH2) nF or OCF2CF＝CF2；
Y1～Y8Be selected from independently of one another H or F;
Z5Represent singly-bound ,-C2H4-、-(CH2)4-、-CH＝CH、-CF＝CF、-C2F4-、-CH2CF2-、-CF2CH2-、-CH2O-、-OCH2、-COO-、-CF2O-or-OCF2-。
2. composition according to claim 1, is characterized in that, in the compound of general formula I representative:
A1Represent singly-bound or Isosorbide-5-Nitrae-cyclohexyl;
A2Represent singly-bound, Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenyl, wherein one or more H atoms can be replaced by F atom;
A3Represent singly-bound or Isosorbide-5-Nitrae-phenyl, wherein one or more H atoms can be replaced by F atom;
A4Represent singly-bound;
X represents F, OCF3、OCHF2、O(CH2) nF or CF3；
Y1And Y2Be selected from independently of one another H or F, and be H when different;
N is 2～5.
3. composition according to claim 2, is characterized in that, in the compound of general formula I representative:
A1Represent singly-bound or Isosorbide-5-Nitrae-cyclohexyl;
A2Represent singly-bound, Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenyl, wherein one or more H atoms can be replaced by F atom;
A3Represent singly-bound or Isosorbide-5-Nitrae-phenyl, wherein one or more H atoms can be replaced by F atom;
A4Represent singly-bound;
X represents F, OCF3、OCHF2Or CF3；
Y1And Y2Be selected from independently of one another H or F, and be H when different;
N is 2～5.
4. composition according to claim 3, is characterized in that, the compound of general formula I representative is selected from following compoundIn one or more:
Wherein, X represents F, OCF3、OCHF2Or CF3；Y1And Y2Be selected from independently of one another H or F, and be H when different; N is 2～5.
5. composition according to claim 4, is characterized in that, the compound of general formula I representative is selected from following compoundIn one or more:
6. composition according to claim 1, is characterized in that, the compound of general formula I I and III representative is selected from as followsOne or more of compound:
The compound of general formula I V to XV representative is selected from one or more in following compound:
Wherein, R2And X1Refer to same claim 1;
The compound of general formula X VI to XVIII representative is selected from one or more in following compound:
Wherein, R2、R3、Y1、Y2And X1Refer to same claim 1;
The compound of general formula X IX to XXIII representative is selected from one or more of following compound:
Wherein, R2、R3And X1Refer to same claim 1;
The compound of general formula X XIV to XXVII representative is selected from one or more in following compound:
Wherein, R2And R3Refer to same claim 1.
7. according to the composition described in claim 1～6 any one, it is characterized in that, described composition comprises following weightThe component of percentage:
1) compound of one or more general formula I representatives of 2%～30%;
2) compound of one or more general formula Is I to III representative of 17%～82%;
3) compound of one or more general formula Is V to XV representative of 0%～70%;
4) compound of one or more general formula X VI to XVIII representative of 5%～30%;
5) compound of one or more general formula X IX to XXIII representative of 0%～25%;
Wherein, above-mentioned 1) to 5) sum is 100%.
8. composition according to claim 7, is characterized in that, described liquid-crystal composition comprises following percentage by weightComponent:
1) compound of one or more general formula I representatives of 4%～30%;
2) compound of one or more general formula Is I to III representative of 20%～80%;
3) compound of one or more general formula Is V to XV representative of 5%～50%;
4) compound of one or more general formula X VI to XVIII representative of 5%～25%;
5) compound of one or more general formula X IX to XXIII representative of 1%～25%;
Wherein, above-mentioned 1) to 5) sum is 100%.
9. composition according to claim 8, is characterized in that, the component that comprises following percentage by weight:
1) compound of one or more general formula I representatives of 5%～20%;
2) compound of one or more general formula Is I to III representative of 23%～60%;
3) compound of one or more general formula Is V to XV representative of 6%～50%;
4) compound of one or more general formula X VI to XVIII representative of 5%～25%;
5) compound of one or more general formula X IX to XXIII representative of 3%～20%;
Wherein, above-mentioned 1) to 5) sum is 100%.
Described in claim 1～9 any one composition in the application of field of liquid crystal display.
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| CN104263382B (en) * | 2014-09-11 | 2016-04-06 | 北京八亿时空液晶科技股份有限公司 | Containing liquid-crystal composition and the application thereof of 1,3-diox and difluoro-methoxy bridged bond compound |
| CN104449762B (en) * | 2014-11-06 | 2016-09-14 | 福建省邵武市永晶化工有限公司 | Fluorinated liquid crystal containing difluoro-methoxy bridged bond and combinations thereof thing |
| CN104498053B (en) * | 2014-11-27 | 2016-05-11 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal compounds that contains difluoro-methoxy bridged bond, composition and application thereof |
| CN104610983B (en) * | 2015-01-21 | 2017-01-11 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition containing 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and application of liquid crystal composition |
| CN104673326B (en) * | 2015-02-04 | 2017-01-11 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition containing fluoroterphenyl compound and pentafluoropropenyl ester compound and application thereof |
| CN104774623B (en) * | 2015-03-13 | 2017-03-01 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal composition and its application |
| JP6578690B2 (en) * | 2015-03-23 | 2019-09-25 | Jnc株式会社 | Liquid crystal compound having halogenated alkyl, liquid crystal composition, and liquid crystal display device |
| CN105018108B (en) * | 2015-06-10 | 2017-03-29 | 北京华科嘉泰科技有限公司 | A kind of liquid-crystal composition for containing 1,3 diox compounds and its application |
| CN105670648B (en) * | 2016-01-12 | 2018-02-13 | 北京华科嘉泰科技有限公司 | A kind of liquid-crystal composition for Thin Film Transistor-LCD |
| CN106281356B (en) * | 2016-07-19 | 2018-11-02 | 福建永晶科技股份有限公司 | Fluorinated liquid crystal and combinations thereof containing difluoro-methoxy bridged bond Yu bis- Evil bases |
| JP6863406B2 (en) * | 2019-05-27 | 2021-04-21 | Jnc株式会社 | Liquid crystal compounds, liquid crystal compositions and liquid crystal display devices with halogenated alkyl |
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